Am 28.10.16 um 09:33 schrieb Marko Rauhamaa:
Christian Gollwitzer <aurio...@gmx.de>:
I still believe that it is not a "basic functionality". You need it,
if you want to program a text editor or similar thing, but without
using a real GUI. This is a small niche.
I disagree. It's a very large group of programs. For example, CPython's
input() function puts the terminal in character mode to support
emacs-style editing keys on Linux. And of course, CPython's REPL reader
does it as well.
CPython does that via GNU readline:
<URL: https://docs.python.org/3/library/readline.html>
You are right, readline is a very important application that uses raw
terminal input. What Bart is complaining, currently you can't easily
implement something like readline in Python from scratch - where you
intercept all keystrokes - as opposed to using readline as it is. I am
just not convinced that so many people need to implement something like
readline.
It is both easier and more functional to use a real GUI library.
Well, CPython doesn't do that...
But it doesn't intercept each keystroke, either. You could argue that
readline IS a "GUI" library, and you get all the benefits from using it
- it is used in multiple places, so the user is familiar with it, you
don't need to fiddle with low-leve stuff like different terminal escape
sequences etc.
Christian
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